001 /**
002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
003 * Licensed under the Apache License, Version 2.0 (the "License");
004 * you may not use this file except in compliance with the License.
005 * You may obtain a copy of the License at
006 *
007 * http://www.apache.org/licenses/LICENSE-2.0
008 *
009 * Unless required by applicable law or agreed to in writing, software
010 * distributed under the License is distributed on an "AS IS" BASIS,
011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012 * See the License for the specific language governing permissions and
013 * limitations under the License. See accompanying LICENSE file.
014 */
015 package org.apache.oozie.command.coord;
016
017 import org.apache.oozie.client.CoordinatorJob;
018 import org.apache.oozie.CoordinatorActionBean;
019 import org.apache.oozie.CoordinatorJobBean;
020 import org.apache.oozie.XException;
021 import org.apache.oozie.command.CommandException;
022 import org.apache.oozie.store.CoordinatorStore;
023 import org.apache.oozie.store.StoreException;
024 import org.apache.oozie.util.ParamChecker;
025 import org.apache.oozie.util.XLog;
026
027 import org.apache.oozie.command.wf.ResumeCommand;
028
029 import java.util.Date;
030 import java.util.List;
031
032 public class CoordResumeCommand extends CoordinatorCommand<Void> {
033
034 private String jobId;
035 private final XLog log = XLog.getLog(getClass());
036
037 public CoordResumeCommand(String id) {
038 super("coord_resume", "coord_resume", 1, XLog.STD);
039 this.jobId = ParamChecker.notEmpty(id, "id");
040 }
041
042 protected Void call(CoordinatorStore store) throws StoreException, CommandException {
043 try {
044 // CoordinatorJobBean coordJob = store.getCoordinatorJob(jobId,
045 // false);
046 CoordinatorJobBean coordJob = store.getEntityManager().find(CoordinatorJobBean.class, jobId);
047 setLogInfo(coordJob);
048 if (coordJob.getStatus() == CoordinatorJob.Status.SUSPENDED) {
049 incrJobCounter(1);
050 coordJob.setStatus(CoordinatorJob.Status.PREP);
051 List<CoordinatorActionBean> actionList = store.getActionsForCoordinatorJob(jobId, false);
052 for (CoordinatorActionBean action : actionList) {
053 // queue a ResumeCommand
054 if (action.getExternalId() != null) {
055 queueCallable(new ResumeCommand(action.getExternalId()));
056 }
057 }
058 store.updateCoordinatorJob(coordJob);
059 }
060 // TODO queueCallable(new NotificationCommand(coordJob));
061 else {
062 log.info("CoordResumeCommand not Resumed - " + "job not in SUSPENDED state " + jobId);
063 }
064 return null;
065 }
066 catch (XException ex) {
067 throw new CommandException(ex);
068 }
069 }
070
071 @Override
072 protected Void execute(CoordinatorStore store) throws StoreException, CommandException {
073 log.info("STARTED CoordResumeCommand for jobId=" + jobId);
074 try {
075 if (lock(jobId)) {
076 call(store);
077 }
078 else {
079 queueCallable(new CoordResumeCommand(jobId), LOCK_FAILURE_REQUEUE_INTERVAL);
080 log.warn("CoordResumeCommand lock was not acquired - " + " failed " + jobId + ". Requeing the same.");
081 }
082 }
083 catch (InterruptedException e) {
084 queueCallable(new CoordResumeCommand(jobId), LOCK_FAILURE_REQUEUE_INTERVAL);
085 log.warn("CoordResumeCommand lock acquiring failed " + " with exception " + e.getMessage() + " for job id "
086 + jobId + ". Requeing the same.");
087 }
088 finally {
089 log.info("ENDED CoordResumeCommand for jobId=" + jobId);
090 }
091 return null;
092 }
093
094 }